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Sourdough Irish Soda Bread

Sourdough Soda Bread recipe uses baking soda and buttermilk to make it rise, along with your sourdough discard.
Course Around the World Recipes, Bread, St. Patrick's Day
Cuisine American, Irish
Keyword Bread, Irish, soda bread
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
Servings 4 Servings
Author Lynn / Turnips 2 Tangerines


  • 1 cup sourdough starter, unfed/discard
  • ½ cup buttermilk
  • 1 egg
  • 2 tablespoons butter, melted
  • 2 cups flour
  • ½ cup rolled oats plus 2 tablespoons
  • 2 teaspoons baking powder
  • 1 or 2 teaspoons sea salt
  • ½ teaspoon baking soda


  • Preheat oven to 400°
  • Grease a baking sheet or line it with parchment paper and lightly sprinkle it with flour or cornmeal.
  • Whisk together the starter, buttermilk, egg, and the melted butter.
  • In a separate bowl, mix together 2 cups of flour, 1/2 cup rolled oats, baking powder, salt and baking soda.
  • Add the wet ingredients to the dry ingredients. Mix together lightly. Dough will be slightly sticky.
  • Form the dough into a ball and place it on the center of your prepared baking sheet. Press the dough down slightly.
  • Cut a deep “X” across the top.
  • Using a pastry brush, brush some buttermilk on top of the dough. Sprinkle oats on the top.
  • Bake for 35-40 minutes, or until the top is golden brown.